UK Prime Minister Keir Starmer announced his resignation on Monday, June 22, 2026, after less than two years in office following poor results in local elections and internal Labour Party pressure. Andy Burnham, the outgoing Manchester mayor, is considered a likely frontrunner to replace him as Labour leader and prime minister. This marks the sixth prime ministerial resignation in the UK in a decade — a reflection of deepening political instability and voter dissatisfaction with rapid leadership turnover. Starmer had won office in a landslide in 2024 but faced sustained criticism over the winter fuel payment cuts and other welfare decisions that damaged his standing with voters.